diff --git a/rustup.spec b/rustup.spec
index 0e1a647..0f87e11 100644
--- a/rustup.spec
+++ b/rustup.spec
@@ -60,6 +60,9 @@ Obsoletes:      rust-doc < %{rust_version}
 Obsoletes:      rust-src < %{rust_version}
 Obsoletes:      rustfmt < %{rust_version}
 
+Conflicts:      rust+cargo
+Conflicts:      rust+rustc
+
 %description
 A tool to manager user Rust toolchains. This is generally used by developers
 managing multiple parallel toolchains in their environment.